The device, service, Nissan Maxima QX repair - Check of a condition of fans of system of cooling and chains of their inclusion, replacement of components//Maxim's Nissan (from 1993 g) accessories-sale.ru

Nissan Maxima QX

since 1993 of release

Repair and car operation



Nissan Maxima QX
+ Nissan Maxima brand Cars
+ Maintenance instruction
+ Settings and routine maintenance
+ Engine
- Systems of cooling, heating
   General information
   Antifreeze - general information
   Check of serviceability of functioning and thermostat replacement
   Check of a condition of fans of system of cooling and chains of their inclusion, replacement of components
   Removal and installation of a radiator and expanded tank of system of cooling
   Check of a condition and replacement of the water pump
   Check of serviceability of functioning and replacement of the block of the sensor of a measuring instrument of temperature of cooling liquid
   Check of serviceability of functioning of the driving electromotor of the fan of a heater and condition of components of its electric chain, …
   Removal and installation of the electromotor of a drive of the fan of a heater
   Removal and installation of assembly of the control panel by functioning of a heater and air conditioner, adjustment of a driving cable
   Removal and installation of the heat exchanger of a heater
   Check of serviceability of functioning and service of systems of heating and air conditioning
   Removal and receiver dehumidifier installation To/in
   Removal, service and To/in compressor installation
   Removal and To/in condenser installation
+ Power supply system and release
+ engine Electric equipment
+ Control systems of the engine
+ Transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
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Check of a condition of fans of system of cooling and chains of their inclusion, replacement of components

Try not to touch blades of a krylchatka with hands, the tool and clothes details. In order to avoid receiving a trauma or equipment damage, do not start the engine at the faulty fan. Do not undertake attempts to repair the broken blades of a krylchatka, - change it assembled!

CHECK

 PERFORMANCE ORDER

1. All models are equipped with the two-high-speed ventilyatorny assembly of system of cooling placed in a plastic casing, fixed behind a radiator.

2. Management of functioning of fans carries out RSM through a set of the relay of high-speed modes. The eats sensor informs RSM on the current temperature of cooling liquid and the module, being based on the analysis of arriving data, carries out inclusion of the corresponding high-speed mode of the fan. On single turns inclusion of a low-high-speed mode is carried out. On reaching temperature of liquid of value 106°С RSM makes inclusion of a high-speed mode No. 1 or No. 2. Existence of the second high-speed mode guarantees serviceability of operation of fans even at failure of one of the relay. Relays continue to function regularly even in default the eats sensor.

And — the Relay of a low-high-speed mode
In — the Relay of a high-speed mode No. 1
With — the Relay of a high-speed mode No. 2

3. If the fan continues to work continuously, it is necessary to check a condition of the relay and the sensor of temperature of cooling liquid. The description of procedure of diagnostics of the sensor is provided in Chapter 6. diagnostics of the relay is described in Head Onboard electric equipment.
4. Warm up the engine to normal working temperature, - fans should turn on, otherwise check a condition of the corresponding safety locks in located in an impellent compartment or in car salon the assembly block (see. Head Onboard electric equipment).

5. If safety locks as it should be, disconnect electroconducting from the electromotor of a drive of the fan. By means of the wire crossing point equipped with a safety lock connect any of two plugs of a food of the electromotor to the battery. The plug of a black wire earth on weight. If the fan does not work, it is necessary to replace it.

6. If when giving food directly from the battery the fan works regularly, connect the voltmeter to mass of the chassis and test both plugs of a food of the electromotor from a plait. At the heated-up engine to normal working temperature (according to indications of a measuring instrument of temperature in an instrument guard) on one of plugs tension of the battery should take place.
7. By means of an ohmmeter check a condition of a contour of grounding, - between the plug of a black wire and mass of the chassis resistance no more than 5 Ohm should take place. At higher instrument readings it is necessary to define and eliminate the reason of taking place violation.
8. If during check described in the paragraph 6 a food on plugs of the socket is absent, check serviceability of its giving on the relay of a low-grade mode. On one of reception plugs of a nest of the relay tension of the battery should take place constantly, on another, - only in the position ON or START of the ignition key.
9. If a food on гнедо moves regularly, check conductivity actually the relay (see. Head Onboard electric equipment).

REPLACEMENT

 PERFORMANCE ORDER

1. Disconnect a negative wire from the battery.

If the stereosystem established on the car is equipped with a security code before disconnecting the battery make sure that have the correct combination for audiosystem input in action!

2. Disconnect from a radiator top and perelivny hoses.

3 Turn out two bolts of fastening of a casing and remove ventilyatorny assembly from the car.

The lower part of a casing fastens to a radiator by means of clamps.

4. Give a nut of fastening of a krylchatka to a motor shaft.

5. Turn out screws of fastening of the motor to a casing.

6. By means of the assistant a hammer beat out a motor shaft from casing assembly.
7. Installation is made upside-down.